Window screen



vso.

therewith, the lower sash being partly ele-y atented Sept. 19, 1922*.

n.2, mme :i

WINDOW SCREEN.

Application filed November 1, 1920. Serial No. l421,165.

'To @ZZ whom t 'may concern,

Be it known that I, JOSEPH D. HIProLrrUs,

a citizen of the United States,residing at lowing to be a full, clear,and exact de scription of the 'invent-ion, such as will enable othersskilled in the art to which it appertains to make and use the same.

This invention relates to window screens.

The object of the invention is to provide an improved construction ofwindow screen which will render same easily associated with an ordinarywindow and when so associa'ted will cover the open space left as thelower sash is raised and will automatically wind upon a suitable rollerelement when the sash is lowered.

A further object of the invention is to providea window screen of thetype named which can be adjusted with respect to its width whereby samecan be made to conform to different sized windows.

With the above and other objects in view the invention consists in thedetails on construction and in the arrangement and combination of partsto be hereinafter more fully described and particularly pointed out inthe appended claim.

-In describing the invention in detail reference will be 1had to theaccompanying drawings wherein like characters of reference denotecorresponding parts in the several views, and in which- I Figure 1 is aView in elevation of a windowl having the improved screen associatedvated; l i

Figure 2, a longitudinal'section of the roller element of the improvedscreen;

Figure 3, a view looking at the left hand end of the roller element inFigure 2;T

Figure 4, a view lookin .at theright end of the roller element in `igure2;

Figure 5, a view of thev anchor member of the screen, and

Figure 6, a section lon the line 6-6 of Fig-l Referring to the drawingsAindicates the window lframe vand B the window sash..v The sash carrieslspacedl brackets 10 and 11 whichsupport the roller element C of theimproved screen after the fashion of mount j vingawindow Shade.

vnient-D. p i

This element C comprises a main roller portlon 10 providedvwith alongitudinal recess 11 opening through1 one end thereof. Mounted in theinner end of the recess 11 1s a bearing block 12 in which is rotatablymounted one end of a rod 13. The other end ofthis rod is rotatablymounted in a disk 14: which closes the outer end of the recess 11. Theouter end of the rod 13 has fixed thereon a ratchet 15v with whichcooperates pawls 16 mountedon the disk 14 for a purpose that willpresently appear. Disposed within the recess 11 and encircling the rod13 is a spring 17 one end of which is anchored to the..bearingl 12 andthe `other end t'o .the rod 13. By this construction it will be obviousthat the tension of the spring 17 can be varied and a desired tensionmaintained by cooperation of the'pawls 16 with the ratchet 15.Projecting from the end of the main roller 10 are longitudinallyextending diametricallyopposite arms 18 and 19 provided on their innerfaces with corresponding grooves 20 in which are slidably engagedrespectively the ends of a pin 21 which is passed through and secured toa 'rod 22, the latter being disposed between and parallel to the varms18 and 19. The outer end of the rod22 carries a journal stud 23 adaptedto rotatably engage in the bracket 11 while theouter end of the rod 13is non-` rotatably engaged in the bracket 10. It will be noted thatowing to adjustability of the rod 22 the roller element C can be readilyadapted for mounting on window sashes ofA different. widths. Attachedto' the main roller 10 is one end of a screen section 24,

while the corresponding endfofa screen sec.

tion 25 is secured tothe rod 22 and said last named screen'sectionpasses through a slot 26 in the arm 19.

The anchor element of the screen is indi-v cated at D and comprisessections 27 and 28. rIhe former is provided with va groove 29 in lwhichis slidably engaged a'rib 30 on the section 28. By this construction itwill be obvious that the sections 27 and 28l can be adjustedlongitudinally fof each other to conform to the adjustment of the rod22. The outer ends' of the sections 27'a11d 28 carry studs -31respectivelyvwhich are adapted to be engaged in prepared recesses in thewindow stop. The lower ends of the Screen sections 24 and 25 are securedrespectively to the sections 27 vadapt the length of the roller to theWidth of the Window, is keyed to the spring roller section so as torotate therewith, is disposed axially with relation to the spring rollersection so Fthat this outer extremity -is adapted to carry one of thejournal studs with which the opposite ends of the roller are equipped,for engagement with the brackets on the sash, and thereforethe extensionrod performs the dual function of an extension of the roller to carrythe movable section of the screen web and also an extension of thejournal carrying elementof the roller, Whereby the operation ofadjust-ing the extension rod adjusts the width of the screen web andlalso the length of the roller to adapt them for a moditied'width of thewindow.

What is claimed is:

vA n extension Window screen of the type having extensionable roller'and anchoring members connected by a sectional screen Web of which themembers overlap at-their adjacent edges, wherein the roller member4screen vveb sections attached to and adjust-v able therewith, the springroller section being cavitied longitudinally to house said j rod andbeing slotted for the passage of the screen web section therethrough,and the journal studs of the roller being carried by the remote ends,respectively, of thespring roller section and sald'eXtension rod.

lln testimony `Whereof, I afhxmy signature, in the presence of twoWitnesses.

Josnrn n. nrnrjonrrns. j

Witnesses:

1E. 'll. RATHBUN, A. E. Poma.

